== sanity test 398c: run fio to test AIO ================= 06:37:25 (1788518245) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.49095 s, 85.4 MB/s osc.lustre-OST0000-osc-ffff910450f8d800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=179874: Fri Sep 4 06:38:06 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30234msec); 0 zone resets slat (usec): min=23, max=17105, avg=187.55, stdev=716.89 clat (msec): min=16, max=406, avg=188.30, stdev=45.80 lat (msec): min=16, max=406, avg=188.50, stdev=45.78 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 405] bw ( KiB/s): min= 228, max= 500, per=24.93%, avg=336.31, stdev=65.10, samples=59 iops : min= 57, max= 125, avg=83.69, stdev=16.24, samples=59 lat (msec) : 20=0.08%, 50=0.20%, 100=1.17%, 250=90.20%, 500=8.36% cpu : usr=0.19%, sys=0.84%, ctx=2275, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=179875: Fri Sep 4 06:38:06 2026 write: IOPS=84, BW=337KiB/s (346kB/s)(10.0MiB/30341msec); 0 zone resets slat (usec): min=27, max=20293, avg=172.63, stdev=754.61 clat (msec): min=40, max=371, avg=188.73, stdev=43.02 lat (msec): min=40, max=371, avg=188.91, stdev=43.01 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 124], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 205, max= 498, per=24.94%, avg=336.47, stdev=63.11, samples=60 iops : min= 51, max= 124, avg=83.78, stdev=15.75, samples=60 lat (msec) : 50=0.04%, 100=0.66%, 250=92.46%, 500=6.84% cpu : usr=0.13%, sys=0.76%, ctx=1661, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=179876: Fri Sep 4 06:38:06 2026 write: IOPS=84, BW=338KiB/s (347kB/s)(10.0MiB/30253msec); 0 zone resets slat (usec): min=30, max=16103, avg=178.01, stdev=662.48 clat (msec): min=41, max=379, avg=188.73, stdev=44.94 lat (msec): min=41, max=380, avg=188.91, stdev=44.94 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 126, max= 510, per=24.93%, avg=336.32, stdev=68.37, samples=60 iops : min= 31, max= 127, avg=83.75, stdev=17.08, samples=60 lat (msec) : 50=0.08%, 100=0.86%, 250=90.39%, 500=8.67% cpu : usr=0.17%, sys=0.75%, ctx=2103, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=179877: Fri Sep 4 06:38:06 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30309msec); 0 zone resets slat (usec): min=24, max=14505, avg=170.49, stdev=607.47 clat (msec): min=20, max=365, avg=188.44, stdev=43.93 lat (msec): min=20, max=366, avg=188.62, stdev=43.92 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 368] bw ( KiB/s): min= 221, max= 466, per=24.95%, avg=336.62, stdev=64.64, samples=60 iops : min= 55, max= 116, avg=83.82, stdev=16.14, samples=60 lat (msec) : 50=0.16%, 100=0.12%, 250=92.15%, 500=7.58% cpu : usr=0.19%, sys=0.76%, ctx=2347, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=1350KiB/s (1382kB/s), 337KiB/s-339KiB/s (346kB/s-347kB/s), io=40.0MiB (41.9MB), run=30234-30341msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179892: Fri Sep 4 06:38:51 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35314msec) slat (usec): min=2913, max=69022, avg=14830.75, stdev=9108.40 clat (msec): min=16, max=425, avg=206.10, stdev=60.82 lat (msec): min=29, max=439, avg=220.93, stdev=62.75 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 228], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 414], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 47, max= 254, per=24.95%, avg=141.73, stdev=46.62, samples=70 iops : min= 11, max= 63, avg=34.84, stdev=11.72, samples=70 write: IOPS=36, BW=147KiB/s (151kB/s)(5192KiB/35314msec); 0 zone resets slat (usec): min=30, max=9488, avg=168.55, stdev=533.15 clat (msec): min=16, max=433, avg=217.24, stdev=63.23 lat (msec): min=16, max=434, avg=217.41, stdev=63.24 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 129], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 266], 90.00th=[ 309], 95.00th=[ 342], | 99.00th=[ 384], 99.50th=[ 388], 99.90th=[ 418], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 48, max= 239, per=24.74%, avg=146.20, stdev=37.14, samples=70 iops : min= 12, max= 59, avg=35.99, stdev= 9.29, samples=70 lat (msec) : 20=0.08%, 50=0.23%, 100=0.94%, 250=75.82%, 500=22.93% cpu : usr=0.22%, sys=1.23%, ctx=3810, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179893: Fri Sep 4 06:38:51 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35291msec) slat (usec): min=2447, max=74516, avg=15082.70, stdev=9548.51 clat (msec): min=8, max=411, avg=207.47, stdev=59.30 lat (msec): min=17, max=427, avg=222.56, stdev=61.29 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 232], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 47, max= 230, per=24.63%, avg=139.87, stdev=41.53, samples=70 iops : min= 11, max= 57, avg=34.40, stdev=10.36, samples=70 write: IOPS=37, BW=149KiB/s (153kB/s)(5264KiB/35291msec); 0 zone resets slat (usec): min=30, max=17758, avg=173.87, stdev=690.65 clat (msec): min=68, max=420, avg=216.18, stdev=60.79 lat (msec): min=68, max=420, avg=216.35, stdev=60.79 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 264], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 95, max= 263, per=25.12%, avg=148.49, stdev=36.67, samples=70 iops : min= 23, max= 65, avg=36.56, stdev= 9.24, samples=70 lat (msec) : 10=0.04%, 100=0.82%, 250=76.13%, 500=23.01% cpu : usr=0.20%, sys=1.36%, ctx=4424, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179894: Fri Sep 4 06:38:51 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35236msec) slat (usec): min=2204, max=82001, avg=14879.25, stdev=9390.53 clat (msec): min=43, max=416, avg=206.54, stdev=60.30 lat (msec): min=64, max=431, avg=221.42, stdev=62.70 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 228], 80.00th=[ 251], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 380], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 47, max= 239, per=24.87%, avg=141.28, stdev=44.92, samples=69 iops : min= 11, max= 59, avg=34.74, stdev=11.30, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35236msec); 0 zone resets slat (usec): min=30, max=15799, avg=208.35, stdev=917.44 clat (msec): min=38, max=453, avg=216.19, stdev=61.47 lat (msec): min=38, max=453, avg=216.40, stdev=61.47 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 264], 90.00th=[ 300], 95.00th=[ 347], | 99.00th=[ 397], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 55, max= 238, per=25.15%, avg=148.62, stdev=38.52, samples=69 iops : min= 13, max= 59, avg=36.58, stdev= 9.65, samples=69 lat (msec) : 50=0.08%, 100=0.78%, 250=76.84%, 500=22.30% cpu : usr=0.20%, sys=1.32%, ctx=4134, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179895: Fri Sep 4 06:38:51 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(5060KiB/35198msec) slat (usec): min=29, max=79249, avg=14944.55, stdev=9472.60 clat (msec): min=29, max=400, avg=212.01, stdev=61.01 lat (msec): min=46, max=416, avg=226.96, stdev=63.30 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 63, max= 239, per=25.28%, avg=143.61, stdev=37.01, samples=69 iops : min= 15, max= 59, avg=35.33, stdev= 9.30, samples=69 write: IOPS=36, BW=147KiB/s (151kB/s)(5180KiB/35198msec); 0 zone resets slat (usec): min=26, max=31301, avg=209.84, stdev=1178.38 clat (msec): min=33, max=428, avg=212.13, stdev=61.61 lat (msec): min=36, max=428, avg=212.34, stdev=61.66 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 232], 80.00th=[ 257], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 384], 99.50th=[ 409], 99.90th=[ 426], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 55, max= 246, per=24.84%, avg=146.80, stdev=43.16, samples=69 iops : min= 13, max= 61, avg=36.12, stdev=10.82, samples=69 lat (msec) : 50=0.12%, 100=1.05%, 250=75.90%, 500=22.93% cpu : usr=0.25%, sys=1.44%, ctx=3994, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=568KiB/s (582kB/s), 141KiB/s-144KiB/s (144kB/s-147kB/s), io=19.6MiB (20.5MB), run=35198-35314msec WRITE: bw=592KiB/s (606kB/s), 147KiB/s-149KiB/s (151kB/s-153kB/s), io=20.4MiB (21.4MB), run=35198-35314msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=179905: Fri Sep 4 06:39:01 2026 read: IOPS=2, BW=86.8MiB/s (90.0MB/s)(40.0MiB/461msec) slat (nsec): min=43674k, max=43674k, avg=43674284.00, stdev= 0.00 clat (nsec): min=391248k, max=391248k, avg=391248386.00, stdev= 0.00 lat (nsec): min=434926k, max=434926k, avg=434926264.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.39%, ctx=6, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=86.8MiB/s (90.0MB/s), 86.8MiB/s-86.8MiB/s (90.0MB/s-90.0MB/s), io=40.0MiB (41.9MB), run=461-461msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout